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Red Queen revisited: Immune gene diversity and parasite load in the asexual Poecilia formosa versus its sexual host species P. mexicana
Manfred Schartl
FRANCISCO JAVIER GARCIA DE LEON
Ralph Tollrian
Acceso Abierto
Atribución-NoComercial-SinDerivadas
DOI: 10.1371/journal.pone.0219000
ISSN: 1932-6203
URL: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0219000
Poecilia formosa, gene
"In accordance with the Red Queen hypothesis, the lower genotypic diversity in clonally reproducing species should make them easier targets for pathogen infection, especially when closely related sexually reproducing species occur in close proximity. We analyzed two populations of clonal P. formosa and their sexual parental species P. mexicana by correlating individual parasite infection with overall and immune genotype. Our study revealed lower levels of overall genotypic diversity and marginally fewer MHC class I alleles in P. Formosa individuals compared to sexually reproducing P. mexicana. Parasite load, however, differed only between field sites but not between species. We hypothesize that this might be due to slightly higher genotypic diversity in P. formosa at the innate immune system (toll like receptor 8) which is likely due to the species’ hybrid origin. In consequence, it appears that clonal individuals do not necessarily suffer a disadvantage compared to sexual individuals when fighting parasite infection."
Public Library of Science
2019
Artículo
PLoS ONE
Inglés
Gösser F, Schartl M, García-De León FJ, Tollrian R, Lampert KP (2019) Red Queen revisited: Immune gene diversity and parasite load in the asexual Poecilia formosa versus its sexual host species P. mexicana. PLoS ONE 14(7): e0219000. https://doi.org/10.1371/journal.pone.0219000
GENÉTICA DE POBLACIONES
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